Initial commitHEADmane

7 files changed, 2160 insertions, 0 deletions

diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/cst-scalar.js b/MistyCore/node_modules/yaml/browser/dist/parse/cst-scalar.js
new file mode 100644
index 0000000..d4def99
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/cst-scalar.js
@@ -0,0 +1,214 @@
+import { resolveBlockScalar } from '../compose/resolve-block-scalar.js';
+import { resolveFlowScalar } from '../compose/resolve-flow-scalar.js';
+import { YAMLParseError } from '../errors.js';
+import { stringifyString } from '../stringify/stringifyString.js';
+
+function resolveAsScalar(token, strict = true, onError) {
+    if (token) {
+        const _onError = (pos, code, message) => {
+            const offset = typeof pos === 'number' ? pos : Array.isArray(pos) ? pos[0] : pos.offset;
+            if (onError)
+                onError(offset, code, message);
+            else
+                throw new YAMLParseError([offset, offset + 1], code, message);
+        };
+        switch (token.type) {
+            case 'scalar':
+            case 'single-quoted-scalar':
+            case 'double-quoted-scalar':
+                return resolveFlowScalar(token, strict, _onError);
+            case 'block-scalar':
+                return resolveBlockScalar(token, strict, _onError);
+        }
+    }
+    return null;
+}
+/**
+ * Create a new scalar token with `value`
+ *
+ * Values that represent an actual string but may be parsed as a different type should use a `type` other than `'PLAIN'`,
+ * as this function does not support any schema operations and won't check for such conflicts.
+ *
+ * @param value The string representation of the value, which will have its content properly indented.
+ * @param context.end Comments and whitespace after the end of the value, or after the block scalar header. If undefined, a newline will be added.
+ * @param context.implicitKey Being within an implicit key may affect the resolved type of the token's value.
+ * @param context.indent The indent level of the token.
+ * @param context.inFlow Is this scalar within a flow collection? This may affect the resolved type of the token's value.
+ * @param context.offset The offset position of the token.
+ * @param context.type The preferred type of the scalar token. If undefined, the previous type of the `token` will be used, defaulting to `'PLAIN'`.
+ */
+function createScalarToken(value, context) {
+    const { implicitKey = false, indent, inFlow = false, offset = -1, type = 'PLAIN' } = context;
+    const source = stringifyString({ type, value }, {
+        implicitKey,
+        indent: indent > 0 ? ' '.repeat(indent) : '',
+        inFlow,
+        options: { blockQuote: true, lineWidth: -1 }
+    });
+    const end = context.end ?? [
+        { type: 'newline', offset: -1, indent, source: '\n' }
+    ];
+    switch (source[0]) {
+        case '|':
+        case '>': {
+            const he = source.indexOf('\n');
+            const head = source.substring(0, he);
+            const body = source.substring(he + 1) + '\n';
+            const props = [
+                { type: 'block-scalar-header', offset, indent, source: head }
+            ];
+            if (!addEndtoBlockProps(props, end))
+                props.push({ type: 'newline', offset: -1, indent, source: '\n' });
+            return { type: 'block-scalar', offset, indent, props, source: body };
+        }
+        case '"':
+            return { type: 'double-quoted-scalar', offset, indent, source, end };
+        case "'":
+            return { type: 'single-quoted-scalar', offset, indent, source, end };
+        default:
+            return { type: 'scalar', offset, indent, source, end };
+    }
+}
+/**
+ * Set the value of `token` to the given string `value`, overwriting any previous contents and type that it may have.
+ *
+ * Best efforts are made to retain any comments previously associated with the `token`,
+ * though all contents within a collection's `items` will be overwritten.
+ *
+ * Values that represent an actual string but may be parsed as a different type should use a `type` other than `'PLAIN'`,
+ * as this function does not support any schema operations and won't check for such conflicts.
+ *
+ * @param token Any token. If it does not include an `indent` value, the value will be stringified as if it were an implicit key.
+ * @param value The string representation of the value, which will have its content properly indented.
+ * @param context.afterKey In most cases, values after a key should have an additional level of indentation.
+ * @param context.implicitKey Being within an implicit key may affect the resolved type of the token's value.
+ * @param context.inFlow Being within a flow collection may affect the resolved type of the token's value.
+ * @param context.type The preferred type of the scalar token. If undefined, the previous type of the `token` will be used, defaulting to `'PLAIN'`.
+ */
+function setScalarValue(token, value, context = {}) {
+    let { afterKey = false, implicitKey = false, inFlow = false, type } = context;
+    let indent = 'indent' in token ? token.indent : null;
+    if (afterKey && typeof indent === 'number')
+        indent += 2;
+    if (!type)
+        switch (token.type) {
+            case 'single-quoted-scalar':
+                type = 'QUOTE_SINGLE';
+                break;
+            case 'double-quoted-scalar':
+                type = 'QUOTE_DOUBLE';
+                break;
+            case 'block-scalar': {
+                const header = token.props[0];
+                if (header.type !== 'block-scalar-header')
+                    throw new Error('Invalid block scalar header');
+                type = header.source[0] === '>' ? 'BLOCK_FOLDED' : 'BLOCK_LITERAL';
+                break;
+            }
+            default:
+                type = 'PLAIN';
+        }
+    const source = stringifyString({ type, value }, {
+        implicitKey: implicitKey || indent === null,
+        indent: indent !== null && indent > 0 ? ' '.repeat(indent) : '',
+        inFlow,
+        options: { blockQuote: true, lineWidth: -1 }
+    });
+    switch (source[0]) {
+        case '|':
+        case '>':
+            setBlockScalarValue(token, source);
+            break;
+        case '"':
+            setFlowScalarValue(token, source, 'double-quoted-scalar');
+            break;
+        case "'":
+            setFlowScalarValue(token, source, 'single-quoted-scalar');
+            break;
+        default:
+            setFlowScalarValue(token, source, 'scalar');
+    }
+}
+function setBlockScalarValue(token, source) {
+    const he = source.indexOf('\n');
+    const head = source.substring(0, he);
+    const body = source.substring(he + 1) + '\n';
+    if (token.type === 'block-scalar') {
+        const header = token.props[0];
+        if (header.type !== 'block-scalar-header')
+            throw new Error('Invalid block scalar header');
+        header.source = head;
+        token.source = body;
+    }
+    else {
+        const { offset } = token;
+        const indent = 'indent' in token ? token.indent : -1;
+        const props = [
+            { type: 'block-scalar-header', offset, indent, source: head }
+        ];
+        if (!addEndtoBlockProps(props, 'end' in token ? token.end : undefined))
+            props.push({ type: 'newline', offset: -1, indent, source: '\n' });
+        for (const key of Object.keys(token))
+            if (key !== 'type' && key !== 'offset')
+                delete token[key];
+        Object.assign(token, { type: 'block-scalar', indent, props, source: body });
+    }
+}
+/** @returns `true` if last token is a newline */
+function addEndtoBlockProps(props, end) {
+    if (end)
+        for (const st of end)
+            switch (st.type) {
+                case 'space':
+                case 'comment':
+                    props.push(st);
+                    break;
+                case 'newline':
+                    props.push(st);
+                    return true;
+            }
+    return false;
+}
+function setFlowScalarValue(token, source, type) {
+    switch (token.type) {
+        case 'scalar':
+        case 'double-quoted-scalar':
+        case 'single-quoted-scalar':
+            token.type = type;
+            token.source = source;
+            break;
+        case 'block-scalar': {
+            const end = token.props.slice(1);
+            let oa = source.length;
+            if (token.props[0].type === 'block-scalar-header')
+                oa -= token.props[0].source.length;
+            for (const tok of end)
+                tok.offset += oa;
+            delete token.props;
+            Object.assign(token, { type, source, end });
+            break;
+        }
+        case 'block-map':
+        case 'block-seq': {
+            const offset = token.offset + source.length;
+            const nl = { type: 'newline', offset, indent: token.indent, source: '\n' };
+            delete token.items;
+            Object.assign(token, { type, source, end: [nl] });
+            break;
+        }
+        default: {
+            const indent = 'indent' in token ? token.indent : -1;
+            const end = 'end' in token && Array.isArray(token.end)
+                ? token.end.filter(st => st.type === 'space' ||
+                    st.type === 'comment' ||
+                    st.type === 'newline')
+                : [];
+            for (const key of Object.keys(token))
+                if (key !== 'type' && key !== 'offset')
+                    delete token[key];
+            Object.assign(token, { type, indent, source, end });
+        }
+    }
+}
+
+export { createScalarToken, resolveAsScalar, setScalarValue };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/cst-stringify.js b/MistyCore/node_modules/yaml/browser/dist/parse/cst-stringify.js
new file mode 100644
index 0000000..d6ab58c
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/cst-stringify.js
@@ -0,0 +1,61 @@
+/**
+ * Stringify a CST document, token, or collection item
+ *
+ * Fair warning: This applies no validation whatsoever, and
+ * simply concatenates the sources in their logical order.
+ */
+const stringify = (cst) => 'type' in cst ? stringifyToken(cst) : stringifyItem(cst);
+function stringifyToken(token) {
+    switch (token.type) {
+        case 'block-scalar': {
+            let res = '';
+            for (const tok of token.props)
+                res += stringifyToken(tok);
+            return res + token.source;
+        }
+        case 'block-map':
+        case 'block-seq': {
+            let res = '';
+            for (const item of token.items)
+                res += stringifyItem(item);
+            return res;
+        }
+        case 'flow-collection': {
+            let res = token.start.source;
+            for (const item of token.items)
+                res += stringifyItem(item);
+            for (const st of token.end)
+                res += st.source;
+            return res;
+        }
+        case 'document': {
+            let res = stringifyItem(token);
+            if (token.end)
+                for (const st of token.end)
+                    res += st.source;
+            return res;
+        }
+        default: {
+            let res = token.source;
+            if ('end' in token && token.end)
+                for (const st of token.end)
+                    res += st.source;
+            return res;
+        }
+    }
+}
+function stringifyItem({ start, key, sep, value }) {
+    let res = '';
+    for (const st of start)
+        res += st.source;
+    if (key)
+        res += stringifyToken(key);
+    if (sep)
+        for (const st of sep)
+            res += st.source;
+    if (value)
+        res += stringifyToken(value);
+    return res;
+}
+
+export { stringify };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/cst-visit.js b/MistyCore/node_modules/yaml/browser/dist/parse/cst-visit.js
new file mode 100644
index 0000000..deca086
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/cst-visit.js
@@ -0,0 +1,97 @@
+const BREAK = Symbol('break visit');
+const SKIP = Symbol('skip children');
+const REMOVE = Symbol('remove item');
+/**
+ * Apply a visitor to a CST document or item.
+ *
+ * Walks through the tree (depth-first) starting from the root, calling a
+ * `visitor` function with two arguments when entering each item:
+ *   - `item`: The current item, which included the following members:
+ *     - `start: SourceToken[]` – Source tokens before the key or value,
+ *       possibly including its anchor or tag.
+ *     - `key?: Token | null` – Set for pair values. May then be `null`, if
+ *       the key before the `:` separator is empty.
+ *     - `sep?: SourceToken[]` – Source tokens between the key and the value,
+ *       which should include the `:` map value indicator if `value` is set.
+ *     - `value?: Token` – The value of a sequence item, or of a map pair.
+ *   - `path`: The steps from the root to the current node, as an array of
+ *     `['key' | 'value', number]` tuples.
+ *
+ * The return value of the visitor may be used to control the traversal:
+ *   - `undefined` (default): Do nothing and continue
+ *   - `visit.SKIP`: Do not visit the children of this token, continue with
+ *      next sibling
+ *   - `visit.BREAK`: Terminate traversal completely
+ *   - `visit.REMOVE`: Remove the current item, then continue with the next one
+ *   - `number`: Set the index of the next step. This is useful especially if
+ *     the index of the current token has changed.
+ *   - `function`: Define the next visitor for this item. After the original
+ *     visitor is called on item entry, next visitors are called after handling
+ *     a non-empty `key` and when exiting the item.
+ */
+function visit(cst, visitor) {
+    if ('type' in cst && cst.type === 'document')
+        cst = { start: cst.start, value: cst.value };
+    _visit(Object.freeze([]), cst, visitor);
+}
+// Without the `as symbol` casts, TS declares these in the `visit`
+// namespace using `var`, but then complains about that because
+// `unique symbol` must be `const`.
+/** Terminate visit traversal completely */
+visit.BREAK = BREAK;
+/** Do not visit the children of the current item */
+visit.SKIP = SKIP;
+/** Remove the current item */
+visit.REMOVE = REMOVE;
+/** Find the item at `path` from `cst` as the root */
+visit.itemAtPath = (cst, path) => {
+    let item = cst;
+    for (const [field, index] of path) {
+        const tok = item?.[field];
+        if (tok && 'items' in tok) {
+            item = tok.items[index];
+        }
+        else
+            return undefined;
+    }
+    return item;
+};
+/**
+ * Get the immediate parent collection of the item at `path` from `cst` as the root.
+ *
+ * Throws an error if the collection is not found, which should never happen if the item itself exists.
+ */
+visit.parentCollection = (cst, path) => {
+    const parent = visit.itemAtPath(cst, path.slice(0, -1));
+    const field = path[path.length - 1][0];
+    const coll = parent?.[field];
+    if (coll && 'items' in coll)
+        return coll;
+    throw new Error('Parent collection not found');
+};
+function _visit(path, item, visitor) {
+    let ctrl = visitor(item, path);
+    if (typeof ctrl === 'symbol')
+        return ctrl;
+    for (const field of ['key', 'value']) {
+        const token = item[field];
+        if (token && 'items' in token) {
+            for (let i = 0; i < token.items.length; ++i) {
+                const ci = _visit(Object.freeze(path.concat([[field, i]])), token.items[i], visitor);
+                if (typeof ci === 'number')
+                    i = ci - 1;
+                else if (ci === BREAK)
+                    return BREAK;
+                else if (ci === REMOVE) {
+                    token.items.splice(i, 1);
+                    i -= 1;
+                }
+            }
+            if (typeof ctrl === 'function' && field === 'key')
+                ctrl = ctrl(item, path);
+        }
+    }
+    return typeof ctrl === 'function' ? ctrl(item, path) : ctrl;
+}
+
+export { visit };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/cst.js b/MistyCore/node_modules/yaml/browser/dist/parse/cst.js
new file mode 100644
index 0000000..8bb2f4a
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/cst.js
@@ -0,0 +1,98 @@
+export { createScalarToken, resolveAsScalar, setScalarValue } from './cst-scalar.js';
+export { stringify } from './cst-stringify.js';
+export { visit } from './cst-visit.js';
+
+/** The byte order mark */
+const BOM = '\u{FEFF}';
+/** Start of doc-mode */
+const DOCUMENT = '\x02'; // C0: Start of Text
+/** Unexpected end of flow-mode */
+const FLOW_END = '\x18'; // C0: Cancel
+/** Next token is a scalar value */
+const SCALAR = '\x1f'; // C0: Unit Separator
+/** @returns `true` if `token` is a flow or block collection */
+const isCollection = (token) => !!token && 'items' in token;
+/** @returns `true` if `token` is a flow or block scalar; not an alias */
+const isScalar = (token) => !!token &&
+    (token.type === 'scalar' ||
+        token.type === 'single-quoted-scalar' ||
+        token.type === 'double-quoted-scalar' ||
+        token.type === 'block-scalar');
+/* istanbul ignore next */
+/** Get a printable representation of a lexer token */
+function prettyToken(token) {
+    switch (token) {
+        case BOM:
+            return '<BOM>';
+        case DOCUMENT:
+            return '<DOC>';
+        case FLOW_END:
+            return '<FLOW_END>';
+        case SCALAR:
+            return '<SCALAR>';
+        default:
+            return JSON.stringify(token);
+    }
+}
+/** Identify the type of a lexer token. May return `null` for unknown tokens. */
+function tokenType(source) {
+    switch (source) {
+        case BOM:
+            return 'byte-order-mark';
+        case DOCUMENT:
+            return 'doc-mode';
+        case FLOW_END:
+            return 'flow-error-end';
+        case SCALAR:
+            return 'scalar';
+        case '---':
+            return 'doc-start';
+        case '...':
+            return 'doc-end';
+        case '':
+        case '\n':
+        case '\r\n':
+            return 'newline';
+        case '-':
+            return 'seq-item-ind';
+        case '?':
+            return 'explicit-key-ind';
+        case ':':
+            return 'map-value-ind';
+        case '{':
+            return 'flow-map-start';
+        case '}':
+            return 'flow-map-end';
+        case '[':
+            return 'flow-seq-start';
+        case ']':
+            return 'flow-seq-end';
+        case ',':
+            return 'comma';
+    }
+    switch (source[0]) {
+        case ' ':
+        case '\t':
+            return 'space';
+        case '#':
+            return 'comment';
+        case '%':
+            return 'directive-line';
+        case '*':
+            return 'alias';
+        case '&':
+            return 'anchor';
+        case '!':
+            return 'tag';
+        case "'":
+            return 'single-quoted-scalar';
+        case '"':
+            return 'double-quoted-scalar';
+        case '|':
+        case '>':
+            return 'block-scalar-header';
+    }
+    return null;
+}
+
+export { BOM, DOCUMENT, FLOW_END, SCALAR, isCollection, isScalar, prettyToken, tokenType };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/lexer.js b/MistyCore/node_modules/yaml/browser/dist/parse/lexer.js
new file mode 100644
index 0000000..20fe13c
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/lexer.js
@@ -0,0 +1,701 @@
+import { BOM, DOCUMENT, FLOW_END, SCALAR } from './cst.js';
+
+/*
+START -> stream
+
+stream
+  directive -> line-end -> stream
+  indent + line-end -> stream
+  [else] -> line-start
+
+line-end
+  comment -> line-end
+  newline -> .
+  input-end -> END
+
+line-start
+  doc-start -> doc
+  doc-end -> stream
+  [else] -> indent -> block-start
+
+block-start
+  seq-item-start -> block-start
+  explicit-key-start -> block-start
+  map-value-start -> block-start
+  [else] -> doc
+
+doc
+  line-end -> line-start
+  spaces -> doc
+  anchor -> doc
+  tag -> doc
+  flow-start -> flow -> doc
+  flow-end -> error -> doc
+  seq-item-start -> error -> doc
+  explicit-key-start -> error -> doc
+  map-value-start -> doc
+  alias -> doc
+  quote-start -> quoted-scalar -> doc
+  block-scalar-header -> line-end -> block-scalar(min) -> line-start
+  [else] -> plain-scalar(false, min) -> doc
+
+flow
+  line-end -> flow
+  spaces -> flow
+  anchor -> flow
+  tag -> flow
+  flow-start -> flow -> flow
+  flow-end -> .
+  seq-item-start -> error -> flow
+  explicit-key-start -> flow
+  map-value-start -> flow
+  alias -> flow
+  quote-start -> quoted-scalar -> flow
+  comma -> flow
+  [else] -> plain-scalar(true, 0) -> flow
+
+quoted-scalar
+  quote-end -> .
+  [else] -> quoted-scalar
+
+block-scalar(min)
+  newline + peek(indent < min) -> .
+  [else] -> block-scalar(min)
+
+plain-scalar(is-flow, min)
+  scalar-end(is-flow) -> .
+  peek(newline + (indent < min)) -> .
+  [else] -> plain-scalar(min)
+*/
+function isEmpty(ch) {
+    switch (ch) {
+        case undefined:
+        case ' ':
+        case '\n':
+        case '\r':
+        case '\t':
+            return true;
+        default:
+            return false;
+    }
+}
+const hexDigits = '0123456789ABCDEFabcdef'.split('');
+const tagChars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-#;/?:@&=+$_.!~*'()".split('');
+const invalidFlowScalarChars = ',[]{}'.split('');
+const invalidAnchorChars = ' ,[]{}\n\r\t'.split('');
+const isNotAnchorChar = (ch) => !ch || invalidAnchorChars.includes(ch);
+/**
+ * Splits an input string into lexical tokens, i.e. smaller strings that are
+ * easily identifiable by `tokens.tokenType()`.
+ *
+ * Lexing starts always in a "stream" context. Incomplete input may be buffered
+ * until a complete token can be emitted.
+ *
+ * In addition to slices of the original input, the following control characters
+ * may also be emitted:
+ *
+ * - `\x02` (Start of Text): A document starts with the next token
+ * - `\x18` (Cancel): Unexpected end of flow-mode (indicates an error)
+ * - `\x1f` (Unit Separator): Next token is a scalar value
+ * - `\u{FEFF}` (Byte order mark): Emitted separately outside documents
+ */
+class Lexer {
+    constructor() {
+        /**
+         * Flag indicating whether the end of the current buffer marks the end of
+         * all input
+         */
+        this.atEnd = false;
+        /**
+         * Explicit indent set in block scalar header, as an offset from the current
+         * minimum indent, so e.g. set to 1 from a header `|2+`. Set to -1 if not
+         * explicitly set.
+         */
+        this.blockScalarIndent = -1;
+        /**
+         * Block scalars that include a + (keep) chomping indicator in their header
+         * include trailing empty lines, which are otherwise excluded from the
+         * scalar's contents.
+         */
+        this.blockScalarKeep = false;
+        /** Current input */
+        this.buffer = '';
+        /**
+         * Flag noting whether the map value indicator : can immediately follow this
+         * node within a flow context.
+         */
+        this.flowKey = false;
+        /** Count of surrounding flow collection levels. */
+        this.flowLevel = 0;
+        /**
+         * Minimum level of indentation required for next lines to be parsed as a
+         * part of the current scalar value.
+         */
+        this.indentNext = 0;
+        /** Indentation level of the current line. */
+        this.indentValue = 0;
+        /** Position of the next \n character. */
+        this.lineEndPos = null;
+        /** Stores the state of the lexer if reaching the end of incpomplete input */
+        this.next = null;
+        /** A pointer to `buffer`; the current position of the lexer. */
+        this.pos = 0;
+    }
+    /**
+     * Generate YAML tokens from the `source` string. If `incomplete`,
+     * a part of the last line may be left as a buffer for the next call.
+     *
+     * @returns A generator of lexical tokens
+     */
+    *lex(source, incomplete = false) {
+        if (source) {
+            this.buffer = this.buffer ? this.buffer + source : source;
+            this.lineEndPos = null;
+        }
+        this.atEnd = !incomplete;
+        let next = this.next ?? 'stream';
+        while (next && (incomplete || this.hasChars(1)))
+            next = yield* this.parseNext(next);
+    }
+    atLineEnd() {
+        let i = this.pos;
+        let ch = this.buffer[i];
+        while (ch === ' ' || ch === '\t')
+            ch = this.buffer[++i];
+        if (!ch || ch === '#' || ch === '\n')
+            return true;
+        if (ch === '\r')
+            return this.buffer[i + 1] === '\n';
+        return false;
+    }
+    charAt(n) {
+        return this.buffer[this.pos + n];
+    }
+    continueScalar(offset) {
+        let ch = this.buffer[offset];
+        if (this.indentNext > 0) {
+            let indent = 0;
+            while (ch === ' ')
+                ch = this.buffer[++indent + offset];
+            if (ch === '\r') {
+                const next = this.buffer[indent + offset + 1];
+                if (next === '\n' || (!next && !this.atEnd))
+                    return offset + indent + 1;
+            }
+            return ch === '\n' || indent >= this.indentNext || (!ch && !this.atEnd)
+                ? offset + indent
+                : -1;
+        }
+        if (ch === '-' || ch === '.') {
+            const dt = this.buffer.substr(offset, 3);
+            if ((dt === '---' || dt === '...') && isEmpty(this.buffer[offset + 3]))
+                return -1;
+        }
+        return offset;
+    }
+    getLine() {
+        let end = this.lineEndPos;
+        if (typeof end !== 'number' || (end !== -1 && end < this.pos)) {
+            end = this.buffer.indexOf('\n', this.pos);
+            this.lineEndPos = end;
+        }
+        if (end === -1)
+            return this.atEnd ? this.buffer.substring(this.pos) : null;
+        if (this.buffer[end - 1] === '\r')
+            end -= 1;
+        return this.buffer.substring(this.pos, end);
+    }
+    hasChars(n) {
+        return this.pos + n <= this.buffer.length;
+    }
+    setNext(state) {
+        this.buffer = this.buffer.substring(this.pos);
+        this.pos = 0;
+        this.lineEndPos = null;
+        this.next = state;
+        return null;
+    }
+    peek(n) {
+        return this.buffer.substr(this.pos, n);
+    }
+    *parseNext(next) {
+        switch (next) {
+            case 'stream':
+                return yield* this.parseStream();
+            case 'line-start':
+                return yield* this.parseLineStart();
+            case 'block-start':
+                return yield* this.parseBlockStart();
+            case 'doc':
+                return yield* this.parseDocument();
+            case 'flow':
+                return yield* this.parseFlowCollection();
+            case 'quoted-scalar':
+                return yield* this.parseQuotedScalar();
+            case 'block-scalar':
+                return yield* this.parseBlockScalar();
+            case 'plain-scalar':
+                return yield* this.parsePlainScalar();
+        }
+    }
+    *parseStream() {
+        let line = this.getLine();
+        if (line === null)
+            return this.setNext('stream');
+        if (line[0] === BOM) {
+            yield* this.pushCount(1);
+            line = line.substring(1);
+        }
+        if (line[0] === '%') {
+            let dirEnd = line.length;
+            const cs = line.indexOf('#');
+            if (cs !== -1) {
+                const ch = line[cs - 1];
+                if (ch === ' ' || ch === '\t')
+                    dirEnd = cs - 1;
+            }
+            while (true) {
+                const ch = line[dirEnd - 1];
+                if (ch === ' ' || ch === '\t')
+                    dirEnd -= 1;
+                else
+                    break;
+            }
+            const n = (yield* this.pushCount(dirEnd)) + (yield* this.pushSpaces(true));
+            yield* this.pushCount(line.length - n); // possible comment
+            this.pushNewline();
+            return 'stream';
+        }
+        if (this.atLineEnd()) {
+            const sp = yield* this.pushSpaces(true);
+            yield* this.pushCount(line.length - sp);
+            yield* this.pushNewline();
+            return 'stream';
+        }
+        yield DOCUMENT;
+        return yield* this.parseLineStart();
+    }
+    *parseLineStart() {
+        const ch = this.charAt(0);
+        if (!ch && !this.atEnd)
+            return this.setNext('line-start');
+        if (ch === '-' || ch === '.') {
+            if (!this.atEnd && !this.hasChars(4))
+                return this.setNext('line-start');
+            const s = this.peek(3);
+            if (s === '---' && isEmpty(this.charAt(3))) {
+                yield* this.pushCount(3);
+                this.indentValue = 0;
+                this.indentNext = 0;
+                return 'doc';
+            }
+            else if (s === '...' && isEmpty(this.charAt(3))) {
+                yield* this.pushCount(3);
+                return 'stream';
+            }
+        }
+        this.indentValue = yield* this.pushSpaces(false);
+        if (this.indentNext > this.indentValue && !isEmpty(this.charAt(1)))
+            this.indentNext = this.indentValue;
+        return yield* this.parseBlockStart();
+    }
+    *parseBlockStart() {
+        const [ch0, ch1] = this.peek(2);
+        if (!ch1 && !this.atEnd)
+            return this.setNext('block-start');
+        if ((ch0 === '-' || ch0 === '?' || ch0 === ':') && isEmpty(ch1)) {
+            const n = (yield* this.pushCount(1)) + (yield* this.pushSpaces(true));
+            this.indentNext = this.indentValue + 1;
+            this.indentValue += n;
+            return yield* this.parseBlockStart();
+        }
+        return 'doc';
+    }
+    *parseDocument() {
+        yield* this.pushSpaces(true);
+        const line = this.getLine();
+        if (line === null)
+            return this.setNext('doc');
+        let n = yield* this.pushIndicators();
+        switch (line[n]) {
+            case '#':
+                yield* this.pushCount(line.length - n);
+            // fallthrough
+            case undefined:
+                yield* this.pushNewline();
+                return yield* this.parseLineStart();
+            case '{':
+            case '[':
+                yield* this.pushCount(1);
+                this.flowKey = false;
+                this.flowLevel = 1;
+                return 'flow';
+            case '}':
+            case ']':
+                // this is an error
+                yield* this.pushCount(1);
+                return 'doc';
+            case '*':
+                yield* this.pushUntil(isNotAnchorChar);
+                return 'doc';
+            case '"':
+            case "'":
+                return yield* this.parseQuotedScalar();
+            case '|':
+            case '>':
+                n += yield* this.parseBlockScalarHeader();
+                n += yield* this.pushSpaces(true);
+                yield* this.pushCount(line.length - n);
+                yield* this.pushNewline();
+                return yield* this.parseBlockScalar();
+            default:
+                return yield* this.parsePlainScalar();
+        }
+    }
+    *parseFlowCollection() {
+        let nl, sp;
+        let indent = -1;
+        do {
+            nl = yield* this.pushNewline();
+            if (nl > 0) {
+                sp = yield* this.pushSpaces(false);
+                this.indentValue = indent = sp;
+            }
+            else {
+                sp = 0;
+            }
+            sp += yield* this.pushSpaces(true);
+        } while (nl + sp > 0);
+        const line = this.getLine();
+        if (line === null)
+            return this.setNext('flow');
+        if ((indent !== -1 && indent < this.indentNext && line[0] !== '#') ||
+            (indent === 0 &&
+                (line.startsWith('---') || line.startsWith('...')) &&
+                isEmpty(line[3]))) {
+            // Allowing for the terminal ] or } at the same (rather than greater)
+            // indent level as the initial [ or { is technically invalid, but
+            // failing here would be surprising to users.
+            const atFlowEndMarker = indent === this.indentNext - 1 &&
+                this.flowLevel === 1 &&
+                (line[0] === ']' || line[0] === '}');
+            if (!atFlowEndMarker) {
+                // this is an error
+                this.flowLevel = 0;
+                yield FLOW_END;
+                return yield* this.parseLineStart();
+            }
+        }
+        let n = 0;
+        while (line[n] === ',') {
+            n += yield* this.pushCount(1);
+            n += yield* this.pushSpaces(true);
+            this.flowKey = false;
+        }
+        n += yield* this.pushIndicators();
+        switch (line[n]) {
+            case undefined:
+                return 'flow';
+            case '#':
+                yield* this.pushCount(line.length - n);
+                return 'flow';
+            case '{':
+            case '[':
+                yield* this.pushCount(1);
+                this.flowKey = false;
+                this.flowLevel += 1;
+                return 'flow';
+            case '}':
+            case ']':
+                yield* this.pushCount(1);
+                this.flowKey = true;
+                this.flowLevel -= 1;
+                return this.flowLevel ? 'flow' : 'doc';
+            case '*':
+                yield* this.pushUntil(isNotAnchorChar);
+                return 'flow';
+            case '"':
+            case "'":
+                this.flowKey = true;
+                return yield* this.parseQuotedScalar();
+            case ':': {
+                const next = this.charAt(1);
+                if (this.flowKey || isEmpty(next) || next === ',') {
+                    this.flowKey = false;
+                    yield* this.pushCount(1);
+                    yield* this.pushSpaces(true);
+                    return 'flow';
+                }
+            }
+            // fallthrough
+            default:
+                this.flowKey = false;
+                return yield* this.parsePlainScalar();
+        }
+    }
+    *parseQuotedScalar() {
+        const quote = this.charAt(0);
+        let end = this.buffer.indexOf(quote, this.pos + 1);
+        if (quote === "'") {
+            while (end !== -1 && this.buffer[end + 1] === "'")
+                end = this.buffer.indexOf("'", end + 2);
+        }
+        else {
+            // double-quote
+            while (end !== -1) {
+                let n = 0;
+                while (this.buffer[end - 1 - n] === '\\')
+                    n += 1;
+                if (n % 2 === 0)
+                    break;
+                end = this.buffer.indexOf('"', end + 1);
+            }
+        }
+        // Only looking for newlines within the quotes
+        const qb = this.buffer.substring(0, end);
+        let nl = qb.indexOf('\n', this.pos);
+        if (nl !== -1) {
+            while (nl !== -1) {
+                const cs = this.continueScalar(nl + 1);
+                if (cs === -1)
+                    break;
+                nl = qb.indexOf('\n', cs);
+            }
+            if (nl !== -1) {
+                // this is an error caused by an unexpected unindent
+                end = nl - (qb[nl - 1] === '\r' ? 2 : 1);
+            }
+        }
+        if (end === -1) {
+            if (!this.atEnd)
+                return this.setNext('quoted-scalar');
+            end = this.buffer.length;
+        }
+        yield* this.pushToIndex(end + 1, false);
+        return this.flowLevel ? 'flow' : 'doc';
+    }
+    *parseBlockScalarHeader() {
+        this.blockScalarIndent = -1;
+        this.blockScalarKeep = false;
+        let i = this.pos;
+        while (true) {
+            const ch = this.buffer[++i];
+            if (ch === '+')
+                this.blockScalarKeep = true;
+            else if (ch > '0' && ch <= '9')
+                this.blockScalarIndent = Number(ch) - 1;
+            else if (ch !== '-')
+                break;
+        }
+        return yield* this.pushUntil(ch => isEmpty(ch) || ch === '#');
+    }
+    *parseBlockScalar() {
+        let nl = this.pos - 1; // may be -1 if this.pos === 0
+        let indent = 0;
+        let ch;
+        loop: for (let i = this.pos; (ch = this.buffer[i]); ++i) {
+            switch (ch) {
+                case ' ':
+                    indent += 1;
+                    break;
+                case '\n':
+                    nl = i;
+                    indent = 0;
+                    break;
+                case '\r': {
+                    const next = this.buffer[i + 1];
+                    if (!next && !this.atEnd)
+                        return this.setNext('block-scalar');
+                    if (next === '\n')
+                        break;
+                } // fallthrough
+                default:
+                    break loop;
+            }
+        }
+        if (!ch && !this.atEnd)
+            return this.setNext('block-scalar');
+        if (indent >= this.indentNext) {
+            if (this.blockScalarIndent === -1)
+                this.indentNext = indent;
+            else
+                this.indentNext += this.blockScalarIndent;
+            do {
+                const cs = this.continueScalar(nl + 1);
+                if (cs === -1)
+                    break;
+                nl = this.buffer.indexOf('\n', cs);
+            } while (nl !== -1);
+            if (nl === -1) {
+                if (!this.atEnd)
+                    return this.setNext('block-scalar');
+                nl = this.buffer.length;
+            }
+        }
+        if (!this.blockScalarKeep) {
+            do {
+                let i = nl - 1;
+                let ch = this.buffer[i];
+                if (ch === '\r')
+                    ch = this.buffer[--i];
+                const lastChar = i; // Drop the line if last char not more indented
+                while (ch === ' ' || ch === '\t')
+                    ch = this.buffer[--i];
+                if (ch === '\n' && i >= this.pos && i + 1 + indent > lastChar)
+                    nl = i;
+                else
+                    break;
+            } while (true);
+        }
+        yield SCALAR;
+        yield* this.pushToIndex(nl + 1, true);
+        return yield* this.parseLineStart();
+    }
+    *parsePlainScalar() {
+        const inFlow = this.flowLevel > 0;
+        let end = this.pos - 1;
+        let i = this.pos - 1;
+        let ch;
+        while ((ch = this.buffer[++i])) {
+            if (ch === ':') {
+                const next = this.buffer[i + 1];
+                if (isEmpty(next) || (inFlow && next === ','))
+                    break;
+                end = i;
+            }
+            else if (isEmpty(ch)) {
+                let next = this.buffer[i + 1];
+                if (ch === '\r') {
+                    if (next === '\n') {
+                        i += 1;
+                        ch = '\n';
+                        next = this.buffer[i + 1];
+                    }
+                    else
+                        end = i;
+                }
+                if (next === '#' || (inFlow && invalidFlowScalarChars.includes(next)))
+                    break;
+                if (ch === '\n') {
+                    const cs = this.continueScalar(i + 1);
+                    if (cs === -1)
+                        break;
+                    i = Math.max(i, cs - 2); // to advance, but still account for ' #'
+                }
+            }
+            else {
+                if (inFlow && invalidFlowScalarChars.includes(ch))
+                    break;
+                end = i;
+            }
+        }
+        if (!ch && !this.atEnd)
+            return this.setNext('plain-scalar');
+        yield SCALAR;
+        yield* this.pushToIndex(end + 1, true);
+        return inFlow ? 'flow' : 'doc';
+    }
+    *pushCount(n) {
+        if (n > 0) {
+            yield this.buffer.substr(this.pos, n);
+            this.pos += n;
+            return n;
+        }
+        return 0;
+    }
+    *pushToIndex(i, allowEmpty) {
+        const s = this.buffer.slice(this.pos, i);
+        if (s) {
+            yield s;
+            this.pos += s.length;
+            return s.length;
+        }
+        else if (allowEmpty)
+            yield '';
+        return 0;
+    }
+    *pushIndicators() {
+        switch (this.charAt(0)) {
+            case '!':
+                return ((yield* this.pushTag()) +
+                    (yield* this.pushSpaces(true)) +
+                    (yield* this.pushIndicators()));
+            case '&':
+                return ((yield* this.pushUntil(isNotAnchorChar)) +
+                    (yield* this.pushSpaces(true)) +
+                    (yield* this.pushIndicators()));
+            case '-': // this is an error
+            case '?': // this is an error outside flow collections
+            case ':': {
+                const inFlow = this.flowLevel > 0;
+                const ch1 = this.charAt(1);
+                if (isEmpty(ch1) || (inFlow && invalidFlowScalarChars.includes(ch1))) {
+                    if (!inFlow)
+                        this.indentNext = this.indentValue + 1;
+                    else if (this.flowKey)
+                        this.flowKey = false;
+                    return ((yield* this.pushCount(1)) +
+                        (yield* this.pushSpaces(true)) +
+                        (yield* this.pushIndicators()));
+                }
+            }
+        }
+        return 0;
+    }
+    *pushTag() {
+        if (this.charAt(1) === '<') {
+            let i = this.pos + 2;
+            let ch = this.buffer[i];
+            while (!isEmpty(ch) && ch !== '>')
+                ch = this.buffer[++i];
+            return yield* this.pushToIndex(ch === '>' ? i + 1 : i, false);
+        }
+        else {
+            let i = this.pos + 1;
+            let ch = this.buffer[i];
+            while (ch) {
+                if (tagChars.includes(ch))
+                    ch = this.buffer[++i];
+                else if (ch === '%' &&
+                    hexDigits.includes(this.buffer[i + 1]) &&
+                    hexDigits.includes(this.buffer[i + 2])) {
+                    ch = this.buffer[(i += 3)];
+                }
+                else
+                    break;
+            }
+            return yield* this.pushToIndex(i, false);
+        }
+    }
+    *pushNewline() {
+        const ch = this.buffer[this.pos];
+        if (ch === '\n')
+            return yield* this.pushCount(1);
+        else if (ch === '\r' && this.charAt(1) === '\n')
+            return yield* this.pushCount(2);
+        else
+            return 0;
+    }
+    *pushSpaces(allowTabs) {
+        let i = this.pos - 1;
+        let ch;
+        do {
+            ch = this.buffer[++i];
+        } while (ch === ' ' || (allowTabs && ch === '\t'));
+        const n = i - this.pos;
+        if (n > 0) {
+            yield this.buffer.substr(this.pos, n);
+            this.pos = i;
+        }
+        return n;
+    }
+    *pushUntil(test) {
+        let i = this.pos;
+        let ch = this.buffer[i];
+        while (!test(ch))
+            ch = this.buffer[++i];
+        return yield* this.pushToIndex(i, false);
+    }
+}
+
+export { Lexer };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/line-counter.js b/MistyCore/node_modules/yaml/browser/dist/parse/line-counter.js
new file mode 100644
index 0000000..002ce24
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/line-counter.js
@@ -0,0 +1,39 @@
+/**
+ * Tracks newlines during parsing in order to provide an efficient API for
+ * determining the one-indexed `{ line, col }` position for any offset
+ * within the input.
+ */
+class LineCounter {
+    constructor() {
+        this.lineStarts = [];
+        /**
+         * Should be called in ascending order. Otherwise, call
+         * `lineCounter.lineStarts.sort()` before calling `linePos()`.
+         */
+        this.addNewLine = (offset) => this.lineStarts.push(offset);
+        /**
+         * Performs a binary search and returns the 1-indexed { line, col }
+         * position of `offset`. If `line === 0`, `addNewLine` has never been
+         * called or `offset` is before the first known newline.
+         */
+        this.linePos = (offset) => {
+            let low = 0;
+            let high = this.lineStarts.length;
+            while (low < high) {
+                const mid = (low + high) >> 1; // Math.floor((low + high) / 2)
+                if (this.lineStarts[mid] < offset)
+                    low = mid + 1;
+                else
+                    high = mid;
+            }
+            if (this.lineStarts[low] === offset)
+                return { line: low + 1, col: 1 };
+            if (low === 0)
+                return { line: 0, col: offset };
+            const start = this.lineStarts[low - 1];
+            return { line: low, col: offset - start + 1 };
+        };
+    }
+}
+
+export { LineCounter };
diff --git a/MistyCore/node_modules/yaml/browser/dist/parse/parser.js b/MistyCore/node_modules/yaml/browser/dist/parse/parser.js
new file mode 100644
index 0000000..d75e1ee
--- /dev/null
+++ b/MistyCore/node_modules/yaml/browser/dist/parse/parser.js
@@ -0,0 +1,950 @@
+import { tokenType } from './cst.js';
+import { Lexer } from './lexer.js';
+
+function includesToken(list, type) {
+    for (let i = 0; i < list.length; ++i)
+        if (list[i].type === type)
+            return true;
+    return false;
+}
+function findNonEmptyIndex(list) {
+    for (let i = 0; i < list.length; ++i) {
+        switch (list[i].type) {
+            case 'space':
+            case 'comment':
+            case 'newline':
+                break;
+            default:
+                return i;
+        }
+    }
+    return -1;
+}
+function isFlowToken(token) {
+    switch (token?.type) {
+        case 'alias':
+        case 'scalar':
+        case 'single-quoted-scalar':
+        case 'double-quoted-scalar':
+        case 'flow-collection':
+            return true;
+        default:
+            return false;
+    }
+}
+function getPrevProps(parent) {
+    switch (parent.type) {
+        case 'document':
+            return parent.start;
+        case 'block-map': {
+            const it = parent.items[parent.items.length - 1];
+            return it.sep ?? it.start;
+        }
+        case 'block-seq':
+            return parent.items[parent.items.length - 1].start;
+        /* istanbul ignore next should not happen */
+        default:
+            return [];
+    }
+}
+/** Note: May modify input array */
+function getFirstKeyStartProps(prev) {
+    if (prev.length === 0)
+        return [];
+    let i = prev.length;
+    loop: while (--i >= 0) {
+        switch (prev[i].type) {
+            case 'doc-start':
+            case 'explicit-key-ind':
+            case 'map-value-ind':
+            case 'seq-item-ind':
+            case 'newline':
+                break loop;
+        }
+    }
+    while (prev[++i]?.type === 'space') {
+        /* loop */
+    }
+    return prev.splice(i, prev.length);
+}
+function fixFlowSeqItems(fc) {
+    if (fc.start.type === 'flow-seq-start') {
+        for (const it of fc.items) {
+            if (it.sep &&
+                !it.value &&
+                !includesToken(it.start, 'explicit-key-ind') &&
+                !includesToken(it.sep, 'map-value-ind')) {
+                if (it.key)
+                    it.value = it.key;
+                delete it.key;
+                if (isFlowToken(it.value)) {
+                    if (it.value.end)
+                        Array.prototype.push.apply(it.value.end, it.sep);
+                    else
+                        it.value.end = it.sep;
+                }
+                else
+                    Array.prototype.push.apply(it.start, it.sep);
+                delete it.sep;
+            }
+        }
+    }
+}
+/**
+ * A YAML concrete syntax tree (CST) parser
+ *
+ * ```ts
+ * const src: string = ...
+ * for (const token of new Parser().parse(src)) {
+ *   // token: Token
+ * }
+ * ```
+ *
+ * To use the parser with a user-provided lexer:
+ *
+ * ```ts
+ * function* parse(source: string, lexer: Lexer) {
+ *   const parser = new Parser()
+ *   for (const lexeme of lexer.lex(source))
+ *     yield* parser.next(lexeme)
+ *   yield* parser.end()
+ * }
+ *
+ * const src: string = ...
+ * const lexer = new Lexer()
+ * for (const token of parse(src, lexer)) {
+ *   // token: Token
+ * }
+ * ```
+ */
+class Parser {
+    /**
+     * @param onNewLine - If defined, called separately with the start position of
+     *   each new line (in `parse()`, including the start of input).
+     */
+    constructor(onNewLine) {
+        /** If true, space and sequence indicators count as indentation */
+        this.atNewLine = true;
+        /** If true, next token is a scalar value */
+        this.atScalar = false;
+        /** Current indentation level */
+        this.indent = 0;
+        /** Current offset since the start of parsing */
+        this.offset = 0;
+        /** On the same line with a block map key */
+        this.onKeyLine = false;
+        /** Top indicates the node that's currently being built */
+        this.stack = [];
+        /** The source of the current token, set in parse() */
+        this.source = '';
+        /** The type of the current token, set in parse() */
+        this.type = '';
+        // Must be defined after `next()`
+        this.lexer = new Lexer();
+        this.onNewLine = onNewLine;
+    }
+    /**
+     * Parse `source` as a YAML stream.
+     * If `incomplete`, a part of the last line may be left as a buffer for the next call.
+     *
+     * Errors are not thrown, but yielded as `{ type: 'error', message }` tokens.
+     *
+     * @returns A generator of tokens representing each directive, document, and other structure.
+     */
+    *parse(source, incomplete = false) {
+        if (this.onNewLine && this.offset === 0)
+            this.onNewLine(0);
+        for (const lexeme of this.lexer.lex(source, incomplete))
+            yield* this.next(lexeme);
+        if (!incomplete)
+            yield* this.end();
+    }
+    /**
+     * Advance the parser by the `source` of one lexical token.
+     */
+    *next(source) {
+        this.source = source;
+        if (this.atScalar) {
+            this.atScalar = false;
+            yield* this.step();
+            this.offset += source.length;
+            return;
+        }
+        const type = tokenType(source);
+        if (!type) {
+            const message = `Not a YAML token: ${source}`;
+            yield* this.pop({ type: 'error', offset: this.offset, message, source });
+            this.offset += source.length;
+        }
+        else if (type === 'scalar') {
+            this.atNewLine = false;
+            this.atScalar = true;
+            this.type = 'scalar';
+        }
+        else {
+            this.type = type;
+            yield* this.step();
+            switch (type) {
+                case 'newline':
+                    this.atNewLine = true;
+                    this.indent = 0;
+                    if (this.onNewLine)
+                        this.onNewLine(this.offset + source.length);
+                    break;
+                case 'space':
+                    if (this.atNewLine && source[0] === ' ')
+                        this.indent += source.length;
+                    break;
+                case 'explicit-key-ind':
+                case 'map-value-ind':
+                case 'seq-item-ind':
+                    if (this.atNewLine)
+                        this.indent += source.length;
+                    break;
+                case 'doc-mode':
+                case 'flow-error-end':
+                    return;
+                default:
+                    this.atNewLine = false;
+            }
+            this.offset += source.length;
+        }
+    }
+    /** Call at end of input to push out any remaining constructions */
+    *end() {
+        while (this.stack.length > 0)
+            yield* this.pop();
+    }
+    get sourceToken() {
+        const st = {
+            type: this.type,
+            offset: this.offset,
+            indent: this.indent,
+            source: this.source
+        };
+        return st;
+    }
+    *step() {
+        const top = this.peek(1);
+        if (this.type === 'doc-end' && (!top || top.type !== 'doc-end')) {
+            while (this.stack.length > 0)
+                yield* this.pop();
+            this.stack.push({
+                type: 'doc-end',
+                offset: this.offset,
+                source: this.source
+            });
+            return;
+        }
+        if (!top)
+            return yield* this.stream();
+        switch (top.type) {
+            case 'document':
+                return yield* this.document(top);
+            case 'alias':
+            case 'scalar':
+            case 'single-quoted-scalar':
+            case 'double-quoted-scalar':
+                return yield* this.scalar(top);
+            case 'block-scalar':
+                return yield* this.blockScalar(top);
+            case 'block-map':
+                return yield* this.blockMap(top);
+            case 'block-seq':
+                return yield* this.blockSequence(top);
+            case 'flow-collection':
+                return yield* this.flowCollection(top);
+            case 'doc-end':
+                return yield* this.documentEnd(top);
+        }
+        /* istanbul ignore next should not happen */
+        yield* this.pop();
+    }
+    peek(n) {
+        return this.stack[this.stack.length - n];
+    }
+    *pop(error) {
+        const token = error ?? this.stack.pop();
+        /* istanbul ignore if should not happen */
+        if (!token) {
+            const message = 'Tried to pop an empty stack';
+            yield { type: 'error', offset: this.offset, source: '', message };
+        }
+        else if (this.stack.length === 0) {
+            yield token;
+        }
+        else {
+            const top = this.peek(1);
+            if (token.type === 'block-scalar') {
+                // Block scalars use their parent rather than header indent
+                token.indent = 'indent' in top ? top.indent : 0;
+            }
+            else if (token.type === 'flow-collection' && top.type === 'document') {
+                // Ignore all indent for top-level flow collections
+                token.indent = 0;
+            }
+            if (token.type === 'flow-collection')
+                fixFlowSeqItems(token);
+            switch (top.type) {
+                case 'document':
+                    top.value = token;
+                    break;
+                case 'block-scalar':
+                    top.props.push(token); // error
+                    break;
+                case 'block-map': {
+                    const it = top.items[top.items.length - 1];
+                    if (it.value) {
+                        top.items.push({ start: [], key: token, sep: [] });
+                        this.onKeyLine = true;
+                        return;
+                    }
+                    else if (it.sep) {
+                        it.value = token;
+                    }
+                    else {
+                        Object.assign(it, { key: token, sep: [] });
+                        this.onKeyLine = !includesToken(it.start, 'explicit-key-ind');
+                        return;
+                    }
+                    break;
+                }
+                case 'block-seq': {
+                    const it = top.items[top.items.length - 1];
+                    if (it.value)
+                        top.items.push({ start: [], value: token });
+                    else
+                        it.value = token;
+                    break;
+                }
+                case 'flow-collection': {
+                    const it = top.items[top.items.length - 1];
+                    if (!it || it.value)
+                        top.items.push({ start: [], key: token, sep: [] });
+                    else if (it.sep)
+                        it.value = token;
+                    else
+                        Object.assign(it, { key: token, sep: [] });
+                    return;
+                }
+                /* istanbul ignore next should not happen */
+                default:
+                    yield* this.pop();
+                    yield* this.pop(token);
+            }
+            if ((top.type === 'document' ||
+                top.type === 'block-map' ||
+                top.type === 'block-seq') &&
+                (token.type === 'block-map' || token.type === 'block-seq')) {
+                const last = token.items[token.items.length - 1];
+                if (last &&
+                    !last.sep &&
+                    !last.value &&
+                    last.start.length > 0 &&
+                    findNonEmptyIndex(last.start) === -1 &&
+                    (token.indent === 0 ||
+                        last.start.every(st => st.type !== 'comment' || st.indent < token.indent))) {
+                    if (top.type === 'document')
+                        top.end = last.start;
+                    else
+                        top.items.push({ start: last.start });
+                    token.items.splice(-1, 1);
+                }
+            }
+        }
+    }
+    *stream() {
+        switch (this.type) {
+            case 'directive-line':
+                yield { type: 'directive', offset: this.offset, source: this.source };
+                return;
+            case 'byte-order-mark':
+            case 'space':
+            case 'comment':
+            case 'newline':
+                yield this.sourceToken;
+                return;
+            case 'doc-mode':
+            case 'doc-start': {
+                const doc = {
+                    type: 'document',
+                    offset: this.offset,
+                    start: []
+                };
+                if (this.type === 'doc-start')
+                    doc.start.push(this.sourceToken);
+                this.stack.push(doc);
+                return;
+            }
+        }
+        yield {
+            type: 'error',
+            offset: this.offset,
+            message: `Unexpected ${this.type} token in YAML stream`,
+            source: this.source
+        };
+    }
+    *document(doc) {
+        if (doc.value)
+            return yield* this.lineEnd(doc);
+        switch (this.type) {
+            case 'doc-start': {
+                if (findNonEmptyIndex(doc.start) !== -1) {
+                    yield* this.pop();
+                    yield* this.step();
+                }
+                else
+                    doc.start.push(this.sourceToken);
+                return;
+            }
+            case 'anchor':
+            case 'tag':
+            case 'space':
+            case 'comment':
+            case 'newline':
+                doc.start.push(this.sourceToken);
+                return;
+        }
+        const bv = this.startBlockValue(doc);
+        if (bv)
+            this.stack.push(bv);
+        else {
+            yield {
+                type: 'error',
+                offset: this.offset,
+                message: `Unexpected ${this.type} token in YAML document`,
+                source: this.source
+            };
+        }
+    }
+    *scalar(scalar) {
+        if (this.type === 'map-value-ind') {
+            const prev = getPrevProps(this.peek(2));
+            const start = getFirstKeyStartProps(prev);
+            let sep;
+            if (scalar.end) {
+                sep = scalar.end;
+                sep.push(this.sourceToken);
+                delete scalar.end;
+            }
+            else
+                sep = [this.sourceToken];
+            const map = {
+                type: 'block-map',
+                offset: scalar.offset,
+                indent: scalar.indent,
+                items: [{ start, key: scalar, sep }]
+            };
+            this.onKeyLine = true;
+            this.stack[this.stack.length - 1] = map;
+        }
+        else
+            yield* this.lineEnd(scalar);
+    }
+    *blockScalar(scalar) {
+        switch (this.type) {
+            case 'space':
+            case 'comment':
+            case 'newline':
+                scalar.props.push(this.sourceToken);
+                return;
+            case 'scalar':
+                scalar.source = this.source;
+                // block-scalar source includes trailing newline
+                this.atNewLine = true;
+                this.indent = 0;
+                if (this.onNewLine) {
+                    let nl = this.source.indexOf('\n') + 1;
+                    while (nl !== 0) {
+                        this.onNewLine(this.offset + nl);
+                        nl = this.source.indexOf('\n', nl) + 1;
+                    }
+                }
+                yield* this.pop();
+                break;
+            /* istanbul ignore next should not happen */
+            default:
+                yield* this.pop();
+                yield* this.step();
+        }
+    }
+    *blockMap(map) {
+        const it = map.items[map.items.length - 1];
+        // it.sep is true-ish if pair already has key or : separator
+        switch (this.type) {
+            case 'newline':
+                this.onKeyLine = false;
+                if (it.value) {
+                    const end = 'end' in it.value ? it.value.end : undefined;
+                    const last = Array.isArray(end) ? end[end.length - 1] : undefined;
+                    if (last?.type === 'comment')
+                        end?.push(this.sourceToken);
+                    else
+                        map.items.push({ start: [this.sourceToken] });
+                }
+                else if (it.sep) {
+                    it.sep.push(this.sourceToken);
+                }
+                else {
+                    it.start.push(this.sourceToken);
+                }
+                return;
+            case 'space':
+            case 'comment':
+                if (it.value) {
+                    map.items.push({ start: [this.sourceToken] });
+                }
+                else if (it.sep) {
+                    it.sep.push(this.sourceToken);
+                }
+                else {
+                    if (this.atIndentedComment(it.start, map.indent)) {
+                        const prev = map.items[map.items.length - 2];
+                        const end = prev?.value?.end;
+                        if (Array.isArray(end)) {
+                            Array.prototype.push.apply(end, it.start);
+                            end.push(this.sourceToken);
+                            map.items.pop();
+                            return;
+                        }
+                    }
+                    it.start.push(this.sourceToken);
+                }
+                return;
+        }
+        if (this.indent >= map.indent) {
+            const atNextItem = !this.onKeyLine && this.indent === map.indent && it.sep;
+            // For empty nodes, assign newline-separated not indented empty tokens to following node
+            let start = [];
+            if (atNextItem && it.sep && !it.value) {
+                const nl = [];
+                for (let i = 0; i < it.sep.length; ++i) {
+                    const st = it.sep[i];
+                    switch (st.type) {
+                        case 'newline':
+                            nl.push(i);
+                            break;
+                        case 'space':
+                            break;
+                        case 'comment':
+                            if (st.indent > map.indent)
+                                nl.length = 0;
+                            break;
+                        default:
+                            nl.length = 0;
+                    }
+                }
+                if (nl.length >= 2)
+                    start = it.sep.splice(nl[1]);
+            }
+            switch (this.type) {
+                case 'anchor':
+                case 'tag':
+                    if (atNextItem || it.value) {
+                        start.push(this.sourceToken);
+                        map.items.push({ start });
+                        this.onKeyLine = true;
+                    }
+                    else if (it.sep) {
+                        it.sep.push(this.sourceToken);
+                    }
+                    else {
+                        it.start.push(this.sourceToken);
+                    }
+                    return;
+                case 'explicit-key-ind':
+                    if (!it.sep && !includesToken(it.start, 'explicit-key-ind')) {
+                        it.start.push(this.sourceToken);
+                    }
+                    else if (atNextItem || it.value) {
+                        start.push(this.sourceToken);
+                        map.items.push({ start });
+                    }
+                    else {
+                        this.stack.push({
+                            type: 'block-map',
+                            offset: this.offset,
+                            indent: this.indent,
+                            items: [{ start: [this.sourceToken] }]
+                        });
+                    }
+                    this.onKeyLine = true;
+                    return;
+                case 'map-value-ind':
+                    if (includesToken(it.start, 'explicit-key-ind')) {
+                        if (!it.sep) {
+                            if (includesToken(it.start, 'newline')) {
+                                Object.assign(it, { key: null, sep: [this.sourceToken] });
+                            }
+                            else {
+                                const start = getFirstKeyStartProps(it.start);
+                                this.stack.push({
+                                    type: 'block-map',
+                                    offset: this.offset,
+                                    indent: this.indent,
+                                    items: [{ start, key: null, sep: [this.sourceToken] }]
+                                });
+                            }
+                        }
+                        else if (it.value) {
+                            map.items.push({ start: [], key: null, sep: [this.sourceToken] });
+                        }
+                        else if (includesToken(it.sep, 'map-value-ind')) {
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start, key: null, sep: [this.sourceToken] }]
+                            });
+                        }
+                        else if (isFlowToken(it.key) &&
+                            !includesToken(it.sep, 'newline')) {
+                            const start = getFirstKeyStartProps(it.start);
+                            const key = it.key;
+                            const sep = it.sep;
+                            sep.push(this.sourceToken);
+                            // @ts-expect-error type guard is wrong here
+                            delete it.key, delete it.sep;
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start, key, sep }]
+                            });
+                        }
+                        else if (start.length > 0) {
+                            // Not actually at next item
+                            it.sep = it.sep.concat(start, this.sourceToken);
+                        }
+                        else {
+                            it.sep.push(this.sourceToken);
+                        }
+                    }
+                    else {
+                        if (!it.sep) {
+                            Object.assign(it, { key: null, sep: [this.sourceToken] });
+                        }
+                        else if (it.value || atNextItem) {
+                            map.items.push({ start, key: null, sep: [this.sourceToken] });
+                        }
+                        else if (includesToken(it.sep, 'map-value-ind')) {
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start: [], key: null, sep: [this.sourceToken] }]
+                            });
+                        }
+                        else {
+                            it.sep.push(this.sourceToken);
+                        }
+                    }
+                    this.onKeyLine = true;
+                    return;
+                case 'alias':
+                case 'scalar':
+                case 'single-quoted-scalar':
+                case 'double-quoted-scalar': {
+                    const fs = this.flowScalar(this.type);
+                    if (atNextItem || it.value) {
+                        map.items.push({ start, key: fs, sep: [] });
+                        this.onKeyLine = true;
+                    }
+                    else if (it.sep) {
+                        this.stack.push(fs);
+                    }
+                    else {
+                        Object.assign(it, { key: fs, sep: [] });
+                        this.onKeyLine = true;
+                    }
+                    return;
+                }
+                default: {
+                    const bv = this.startBlockValue(map);
+                    if (bv) {
+                        if (atNextItem &&
+                            bv.type !== 'block-seq' &&
+                            includesToken(it.start, 'explicit-key-ind')) {
+                            map.items.push({ start });
+                        }
+                        this.stack.push(bv);
+                        return;
+                    }
+                }
+            }
+        }
+        yield* this.pop();
+        yield* this.step();
+    }
+    *blockSequence(seq) {
+        const it = seq.items[seq.items.length - 1];
+        switch (this.type) {
+            case 'newline':
+                if (it.value) {
+                    const end = 'end' in it.value ? it.value.end : undefined;
+                    const last = Array.isArray(end) ? end[end.length - 1] : undefined;
+                    if (last?.type === 'comment')
+                        end?.push(this.sourceToken);
+                    else
+                        seq.items.push({ start: [this.sourceToken] });
+                }
+                else
+                    it.start.push(this.sourceToken);
+                return;
+            case 'space':
+            case 'comment':
+                if (it.value)
+                    seq.items.push({ start: [this.sourceToken] });
+                else {
+                    if (this.atIndentedComment(it.start, seq.indent)) {
+                        const prev = seq.items[seq.items.length - 2];
+                        const end = prev?.value?.end;
+                        if (Array.isArray(end)) {
+                            Array.prototype.push.apply(end, it.start);
+                            end.push(this.sourceToken);
+                            seq.items.pop();
+                            return;
+                        }
+                    }
+                    it.start.push(this.sourceToken);
+                }
+                return;
+            case 'anchor':
+            case 'tag':
+                if (it.value || this.indent <= seq.indent)
+                    break;
+                it.start.push(this.sourceToken);
+                return;
+            case 'seq-item-ind':
+                if (this.indent !== seq.indent)
+                    break;
+                if (it.value || includesToken(it.start, 'seq-item-ind'))
+                    seq.items.push({ start: [this.sourceToken] });
+                else
+                    it.start.push(this.sourceToken);
+                return;
+        }
+        if (this.indent > seq.indent) {
+            const bv = this.startBlockValue(seq);
+            if (bv) {
+                this.stack.push(bv);
+                return;
+            }
+        }
+        yield* this.pop();
+        yield* this.step();
+    }
+    *flowCollection(fc) {
+        const it = fc.items[fc.items.length - 1];
+        if (this.type === 'flow-error-end') {
+            let top;
+            do {
+                yield* this.pop();
+                top = this.peek(1);
+            } while (top && top.type === 'flow-collection');
+        }
+        else if (fc.end.length === 0) {
+            switch (this.type) {
+                case 'comma':
+                case 'explicit-key-ind':
+                    if (!it || it.sep)
+                        fc.items.push({ start: [this.sourceToken] });
+                    else
+                        it.start.push(this.sourceToken);
+                    return;
+                case 'map-value-ind':
+                    if (!it || it.value)
+                        fc.items.push({ start: [], key: null, sep: [this.sourceToken] });
+                    else if (it.sep)
+                        it.sep.push(this.sourceToken);
+                    else
+                        Object.assign(it, { key: null, sep: [this.sourceToken] });
+                    return;
+                case 'space':
+                case 'comment':
+                case 'newline':
+                case 'anchor':
+                case 'tag':
+                    if (!it || it.value)
+                        fc.items.push({ start: [this.sourceToken] });
+                    else if (it.sep)
+                        it.sep.push(this.sourceToken);
+                    else
+                        it.start.push(this.sourceToken);
+                    return;
+                case 'alias':
+                case 'scalar':
+                case 'single-quoted-scalar':
+                case 'double-quoted-scalar': {
+                    const fs = this.flowScalar(this.type);
+                    if (!it || it.value)
+                        fc.items.push({ start: [], key: fs, sep: [] });
+                    else if (it.sep)
+                        this.stack.push(fs);
+                    else
+                        Object.assign(it, { key: fs, sep: [] });
+                    return;
+                }
+                case 'flow-map-end':
+                case 'flow-seq-end':
+                    fc.end.push(this.sourceToken);
+                    return;
+            }
+            const bv = this.startBlockValue(fc);
+            /* istanbul ignore else should not happen */
+            if (bv)
+                this.stack.push(bv);
+            else {
+                yield* this.pop();
+                yield* this.step();
+            }
+        }
+        else {
+            const parent = this.peek(2);
+            if (parent.type === 'block-map' &&
+                ((this.type === 'map-value-ind' && parent.indent === fc.indent) ||
+                    (this.type === 'newline' &&
+                        !parent.items[parent.items.length - 1].sep))) {
+                yield* this.pop();
+                yield* this.step();
+            }
+            else if (this.type === 'map-value-ind' &&
+                parent.type !== 'flow-collection') {
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                fixFlowSeqItems(fc);
+                const sep = fc.end.splice(1, fc.end.length);
+                sep.push(this.sourceToken);
+                const map = {
+                    type: 'block-map',
+                    offset: fc.offset,
+                    indent: fc.indent,
+                    items: [{ start, key: fc, sep }]
+                };
+                this.onKeyLine = true;
+                this.stack[this.stack.length - 1] = map;
+            }
+            else {
+                yield* this.lineEnd(fc);
+            }
+        }
+    }
+    flowScalar(type) {
+        if (this.onNewLine) {
+            let nl = this.source.indexOf('\n') + 1;
+            while (nl !== 0) {
+                this.onNewLine(this.offset + nl);
+                nl = this.source.indexOf('\n', nl) + 1;
+            }
+        }
+        return {
+            type,
+            offset: this.offset,
+            indent: this.indent,
+            source: this.source
+        };
+    }
+    startBlockValue(parent) {
+        switch (this.type) {
+            case 'alias':
+            case 'scalar':
+            case 'single-quoted-scalar':
+            case 'double-quoted-scalar':
+                return this.flowScalar(this.type);
+            case 'block-scalar-header':
+                return {
+                    type: 'block-scalar',
+                    offset: this.offset,
+                    indent: this.indent,
+                    props: [this.sourceToken],
+                    source: ''
+                };
+            case 'flow-map-start':
+            case 'flow-seq-start':
+                return {
+                    type: 'flow-collection',
+                    offset: this.offset,
+                    indent: this.indent,
+                    start: this.sourceToken,
+                    items: [],
+                    end: []
+                };
+            case 'seq-item-ind':
+                return {
+                    type: 'block-seq',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start: [this.sourceToken] }]
+                };
+            case 'explicit-key-ind': {
+                this.onKeyLine = true;
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                start.push(this.sourceToken);
+                return {
+                    type: 'block-map',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start }]
+                };
+            }
+            case 'map-value-ind': {
+                this.onKeyLine = true;
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                return {
+                    type: 'block-map',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start, key: null, sep: [this.sourceToken] }]
+                };
+            }
+        }
+        return null;
+    }
+    atIndentedComment(start, indent) {
+        if (this.type !== 'comment')
+            return false;
+        if (this.indent <= indent)
+            return false;
+        return start.every(st => st.type === 'newline' || st.type === 'space');
+    }
+    *documentEnd(docEnd) {
+        if (this.type !== 'doc-mode') {
+            if (docEnd.end)
+                docEnd.end.push(this.sourceToken);
+            else
+                docEnd.end = [this.sourceToken];
+            if (this.type === 'newline')
+                yield* this.pop();
+        }
+    }
+    *lineEnd(token) {
+        switch (this.type) {
+            case 'comma':
+            case 'doc-start':
+            case 'doc-end':
+            case 'flow-seq-end':
+            case 'flow-map-end':
+            case 'map-value-ind':
+                yield* this.pop();
+                yield* this.step();
+                break;
+            case 'newline':
+                this.onKeyLine = false;
+            // fallthrough
+            case 'space':
+            case 'comment':
+            default:
+                // all other values are errors
+                if (token.end)
+                    token.end.push(this.sourceToken);
+                else
+                    token.end = [this.sourceToken];
+                if (this.type === 'newline')
+                    yield* this.pop();
+        }
+    }
+}
+
+export { Parser };